Add complex UI docs and samples #2: add color to the text

README_RICH_UI.md

@@ -72,7 +72,7 @@ Handling clicks on elements works the same as when using the `ui` module API. Ju
 This is all you need to know about the new API. Below is an example demonstrating all supported elements and all their default parameters:
 
 ```
-{"text", "", {size = 17, gravity = "left"}},
+{"text", "", {size = 17, color = "", gravity = "left"}},
 {"button", "", {color = "", gravity = "left"}},
 {"icon", "", {size = 17, color = "", gravity = "left"}},
 {"progress" "", {progress = 0, color = "", gravity = "left"}},

samples/rich-gui-sample.lua

@@ -5,7 +5,7 @@ function on_resume()
     if app == nil then return end
 
     my_gui = gui{
-        {"text", "<b>Title</b>", {size = 19, gravity = "center_h"}},
+        {"text", "<b>Title</b>", {size = 19, color = "#ff0000", gravity = "center_h"}},
         {"new_line", 2},
         {"text", "Hello, World", {size = 21}},
         {"spacer", 2},